Contradiction with Numbers 13:28
This verse mentions the strength of the inhabitants of the land and their fortified cities, implying the difficulty in driving them out, contrary to Joshua 15:14 where Caleb drives them out successfully.
Numbers 13:28: Nevertheless the people [be] strong that dwell in the land, and the cities [are] walled, [and] very great: and moreover we saw the children of Anak there.
Contradiction with Judges 1:19
Describes the inability of the tribe of Judah to drive out the inhabitants because of their iron chariots, in contrast to Caleb's success in Joshua 15:14.
Judges 1:19: And the LORD was with Judah; and he drave out [the inhabitants of] the mountain; but could not drive out the inhabitants of the valley, because they had chariots of iron. [drave...: or, possessed the mountain]
Contradiction with Joshua 17:12-13
Describes the failure of the tribe of Manasseh to fully drive out the Canaanites, unlike Caleb’s complete victory in Joshua 15:14.
Joshua 17:12-13: Yet the children of Manasseh could not drive out [the inhabitants of] those cities; but the Canaanites would dwell in that land.
Contradiction with Judges 3:1-2
States that God left some nations to test Israel, contradicting the complete removal of the Anakims as described in Joshua 15:14.
Judges 3:1-2: Now these [are] the nations which the LORD left, to prove Israel by them, [even] as many [of Israel] as had not known all the wars of Canaan;
Contradiction with Judges 2:21-23
Indicates that God allowed some nations to remain, contrasting with the total expulsion by Caleb mentioned in Joshua 15:14.
Judges 2:21-23: I also will not henceforth drive out any from before them of the nations which Joshua left when he died: